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为总结某市地面水源水厂在水源选择及水源卫生防护方面的经验教训，对某市近１０年内８家水厂搬迁取水口的原因作了调查分析，其原因有取水口陷入城镇建成区、辖区外来污染、原水相对封闭及工业污水影响等因素，导致水源水质下降，甚至毒物超标。对这些水厂的有关经济损失作了估算，这些水厂原取水口设施平均使用６．５年，实际服务效益年为４９９７万元·年，是预期服务效益年的４９．４％。作者对水源选择及卫生防护提出了加强预防性卫生监督，避开水源相对封闭区域，选择最佳水源实行区域供水等建议
In order to summarize the experiences and lessons of water source selection and water source sanitation protection in a certain city, the reasons for the removal of water intakes at eight water plants in a certain city during the past 10 years were investigated and analyzed. The reasons were that the water intake was trapped in the built- Areas outside the pollution, raw water is relatively closed and the impact of industrial sewage and other factors, leading to decline in water quality, or even excessive poison. The economic losses of these waterworks are estimated. The average water intake of these waterworks is 6.5 years. The actual service benefit is 49.97 million yuan a year, which is 49.4% of the expected service benefit year. The author puts forward some suggestions on water source selection and health protection, such as strengthening preventive hygiene supervision, avoiding relatively confined areas of water sources, selecting the best water sources and implementing regional water supply